The application that is not used in social business is Communities.
- This is because Communities is not an application.
- Community is just a term that is used to describe a group of people that are living in the same geographical area, often with similar interests or goals.
- However, Crowdsourcing is an application that is used in gathering information about people such as service providers or consumers.
- Email is a web application that is used to communicate with people far and near. It can be used to advertise and inform people about a product.
- Social networks: this is an application in which business owner can use to communicate with his customers or gather new clients.
- Blogs and wikis: this is also a web application that is used in writing about things or events. It can be used to store product description and promote it to the target consumers.
Hence, in this case, the correct answer is option A. "Communities."
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